1. An extreme form of sus, used only in extreme circumstances.

2. A 2006 heavy metal band.
Bruh, you see homie #2 over there? He be megasus right now, you feel me?

Dude, did you listen to the Megasus album? Top quality metal right there.
by RoadsterInSpace February 26, 2020
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carsen dewayne copeland and henry micheal cringean are megasus
by shreklover826382 May 15, 2021
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1. 10000000% awesome

2. Some random band in guitar hero 2.
Person 1: Have you seen 300 yet?
Person 2: No, is it any good.
Person 1: Dude, its fucking megasus!
by My name is Megasus March 30, 2007
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WHEN THE SUSSY BAKA IS SUS IN AMONG GUS AND YOU WANT YOUR FRIENDS TO PLAY SUSSY GAME WITH YOU BUT LISTEN HEARTS OF IRON 4 IS A GOOD GAME ANF I FHJAFHKAHFJAHFHJAGFHJHJHAHGAMNHSAFAHFAHAHGAHGGFHGDSJAGHGFSDHGFGHAFHGVAGHDSFHGFVHAGHAGHGAHFGHAFGHAFGSHFGFFGHFGHCGFFGHCFTGFGFGGFHG HG YYUI UGIHIU YUGOSLAVIA SUCKS HORSE DICK BUY MY MERCH
SHLATFISH MEGASUS
by Jenny0175 June 4, 2022
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